Evolution

The HMS Beagle stopped at the Galapagos Islands. These islands are present in the Western shore of South America. They are named after the large tortoises (Sp. galapago. tortoise) that inhabit there. Giant Tortoises of the Galapagos Islands The tortoises of Galapagos Islands weight up to 250 kg. They have shells up to 1.8 m in diameter. They live far ...

Voyage of the beagle is a book about journey of Charles Darwin written by himself. Charles Robert Darwin (1809—1882) was born on February 12, 1809. His father was a physician. Darwin collected dogs and hunting birds during his youth. These activities reduced his interest in school education. He entered medical school in Edinburgh, Scotland in 1825. There, he enjoyed the ...

Darwin formulated his ideas of theory of evolution by natural selection by 1844. There are following points of his theory of evolution by natural selection on the basis of evolution. Evolution The change in the heritable traits of a population over successive generations, as determined by shifts in the allele frequencies of genes is called evolution. All contemporary organisms are ...

Many theories were put forward on basis of evolution (such as theory of Inheritance of Acquired Characteristics Jean Baptiste Lamarck), how organisms evolve according to time by the environmental changes or organisms modify themselves in order to survive. Jean Baptiste Lamarck (1744—1829) Jean Baptiste de Lamarck (1744—1829) was a French zoologist who gave Theory of Inheritance Acquired Characteristics. He studied animal classification. He gave a ...